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COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Mar. 31, 2022
Contracts with U.S. government agencies or other U.S. government contractors | Revenue Benchmark | Total U.S. government |  |  |
Concentration Risk [Line Items] |  |  |
Concentration risk (as a percent) | 97.00% | 98.00% |
Unfavorable Regulatory Action |  |  |
Loss Contingencies [Line Items] |  |  |
Liability for reductions and/or penalties from U.S Government audits | $ 304.6 |  | $ 290.4
Financial Standby Letter of Credit |  |  |
Concentration Risk [Line Items] |  |  |
Guarantor obligations, carrying value | 7.5 |  | 8.4
Guarantor obligations, reduction to available borrowings | 1.0 |  | 1.0
Guarantor obligations, facility | 20.0 |  | 20.0
Guarantor obligations, available amount | $ 13.5 |  | $ 12.6

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